QM_MIG_REGION_SEL
val = readl(qm->io_base + QM_MIG_REGION_SEL);
writel(val, qm->io_base + QM_MIG_REGION_SEL);
val = readl(qm->io_base + QM_MIG_REGION_SEL);
writel(val, qm->io_base + QM_MIG_REGION_SEL);
val = readl(pf_qm->io_base + QM_MIG_REGION_SEL);